CN201927354U

CN201927354U - USB (universal serial bus) gating controller

Info

Publication number: CN201927354U
Application number: CN2011200452848U
Authority: CN
Inventors: 李国发
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-02-23
Filing date: 2011-02-23
Publication date: 2011-08-10
Anticipated expiration: 2021-02-23

Abstract

The utility model provides a USB (universal serial bus) gating controller, which utilizes the operating principle of a relay. When the USB gating controller is used, a USB device is connected onto a USB device interface, and n USB gating interfaces are connected to n different computers respectively (n>=2). By operating a gating switch in an optional control operating group to control on/off of a normally open end of a secondary control relay in the corresponding operating group, so that gating of one corresponding USB gating interface in the operating group and the USB device interface is realized, the USB device can be gated with different computers to operate, the circuit structure is simple, and data communication is undistorted. Simultaneously, the USB gating controller can also ensure that the USB device which is connected to one computer is operated without being occupied by another computer, namely the USB device can be controlled automatically to be used only on the premise of being connected to at most one computer at the same time, so that use interference to the USB device from different computers is avoided.

Description

The USB Strobe Controller

Technical field

The utility model relates to numerically-controlled machine control technology field, particularly a kind of USB Strobe Controller.

Background technology

Connect the peripherals that uses on computers by USB interface and be commonly called USB device, as USB flash disk, portable hard drive, electronics secret key, printer etc.At present, all be on the man-to-man USB input interface that is plugged on computing machine when using USB device.On second computing machine, use if desired and be connected first USB device on the computing machine, USB device can only be chosen from first computing machine under a lot of situations, be plugged into again on the USB input interface of second computing machine and manipulate, troublesome poeration so not only, and frequent plug is easy to damage the USB interface of USB device.

The utility model content

At the prior art above shortcomings, the purpose of this utility model is to provide a kind of USB Strobe Controller, allow USB device be connected on many computing machines by this USB Strobe Controller, can realize easily that the gating of a USB device on many computing machines uses, and avoids the repeatedly plug of USB device between many computing machines.

For achieving the above object, the technical scheme that the utility model adopted is as follows:

The USB Strobe Controller is characterized in that, comprises power supply, USB device interface, a n USB gating interface and a n Control work group, and each Control work group includes a master relay, a secondary controlled relay and a gating switch; N 〉=2;

The Chang Kaiduan of the master relay in each Control work group and the series connection of the coil control end of secondary controlled relay constitute one tunnel secondary control branch road; The normal-closed end of the master relay in the gating switch in each Control work group and each Control work group of the coil control end and all the other of master relay is connected and is constituted one tunnel master control branch road; The master control branch road at the coil control end place of same master relay and the parallel connection of the secondary control in normal beginning place branch road constitute one road gating control unit circuit; Thereby n working group constitutes n road gating control unit circuit; Described power supply is in parallel with n road gating control unit circuit, is used to provide operating voltage;

Described n USB gating interface is connected with the USB device interface by the Chang Kaiduan of secondary controlled relay in n the Control work group respectively.

This USB Strobe Controller adopts relay as the major control device.Relay is to bring in the on/off at control normal-closed end and normal beginning by coil control; Herein, the coil control end of relay is meant the positive and negative terminals of the operating voltage of coil in the relay, and normal-closed end is meant the terminals of armature and normally closed contact in the relay, and Chang Kaiduan is meant the terminals of armature and normally opened contact in the relay; When the coil control end was not switched on, the normal-closed end conducting of relay, Chang Kaiduan disconnected; When the coil control end was connected with coil working voltage, the normal-closed end of relay just disconnected, the Chang Kaiduan conducting.This USB Strobe Controller utilizes the principle of work of relay, during use, USB device is connected on the USB device interface, and n USB gating interface is connected respectively to the different computing machine of n platform, n 〉=2 again; Control the on/off of secondary controlled relay Chang Kaiduan in the corresponding Control work group by operating gating switch in arbitrary Control work group, thereby realize the USB gating interface of this working group's correspondence and the gating of USB device interface, USB device can be selected to be communicated on the different computing machines work.The detailed process of gating operation is, under the situation that each gating switch of USB Strobe Controller all disconnects, because all energisings of the coil control end of each master relay, so the normal-closed end of each master relay is all for closed conducting state; In n the Control work group, the gating switch of operating any i Control work group makes its closure, the master control branch road at this gating switch place is communicated with, the coil control end of i Control work group master relay energising in the master control branch road, make the Chang Kaiduan of this master relay change into conducting state by off-state, and then be communicated with the pair control branch road at the Chang Kaiduan place of this master relay, the coil control end energising of i the secondary controlled relay of Control work group in the secondary control this moment branch road, make the Chang Kaiduan of this pair controlled relay change into conducting state by off-state, and then make a USB gating interface of the Chang Kaiduan connection by the secondary controlled relay of i Control work group be communicated with the USB device interface, allow USB device be connected on the computing machine in the n platform computing machine and work.In the closed conduction period of Chang Kaiduan of the secondary controlled relay of i Control work group, because the coil control end of i Control work group master relay energising, therefore the normal-closed end of this master relay is in off-state at this moment, and the normal-closed end of i Control work group master relay is connected in the middle of other each road master control branch road, even at this moment operate other any j Control work group (gating switch among the j ≠ i), also can't make the master control branch road at coil control end place of j Control work group master relay be communicated with energising, and then avoid the Chang Kaiduan closure of j Control work group pair controlled relay to cause another USB gating interface also to be communicated with the USB device interface; Gating switch until i Control work group of operation makes its disconnection, after allowing the coil control end outage of i Control work group master relay make its normal-closed end recover closure state, just may allow another USB gating interface of the Chang Kaiduan connection by the secondary controlled relay of j Control work group be communicated with the USB device interface.By such control relation, the USB Strobe Controller has guaranteed can not taken by another computing machine when USB device is worked on being connected to a computing machine, promptly automatic control USB device can only be connected on the computing machine at the most at synchronization to be used, and has avoided the various computing machine that the use of USB device is disturbed.

As improvement, in the USB Strobe Controller of the above, also comprise the user mode pilot lamp at least one Control work group; In comprising the Control work group of user mode pilot lamp, the user mode pilot lamp is in parallel with the coil control end of master relay.

In this improvement project, if the coil control end of i Control work group master relay is parallel with the user mode pilot lamp, the gating switch closure of this Control work group can make the coil control end of master relay and user mode pilot lamp switch on simultaneously, and the user mode pilot lamp that lights can be used to indicate the Chang Kaiduan by the secondary controlled relay of i Control work group connects a USB gating interface and USB device interface for being communicated with user mode.

As further improvement, in the USB Strobe Controller of the above, also comprise the upstate pilot lamp at least one Control work group; In comprising the Control work group of upstate pilot lamp, gating switch is a single-pole double-throw switch (SPDT), one end of upstate pilot lamp links to each other with an end of master relay coil control end, and the other end of upstate pilot lamp and master relay coil control end is connected two choosings of gating switch respectively and throws the contact.

In this improvement project, if be provided with the upstate pilot lamp in i Control work group, select the choosing of throwing to throw the contact gating switch in the connection of upstate pilot lamp, the energising of upstate pilot lamp lights all not energisings of coil control end of promptly representing other each working group's master relay, normal-closed end all is in conducting state, that is to say to be communicated with the USB device interface without any a USB gating interface this moment, promptly indication this moment i Control work group gating switch choosing thrown and throw the contact in the choosing of master relay coil control end connection and can make the USB gating interface of the Chang Kaiduan connection by i Control work group pair controlled relay be communicated with use with the USB device interface.

In sum, the utlity model has following beneficial effect:

1, USB device is connected on the USB device interface of the utility model USB Strobe Controller, the n of USB Strobe Controller USB gating interface is connected respectively to the different computing machine of n platform, by the operation USB Strobe Controller gating switch in i Control work group arbitrarily, just can realize the gating of corresponding i USB gating interface and USB device interface, USB device can be selected to be communicated on the different computing machines work, circuit structure is simple; And any type of data-switching is not passed through in the gating connection of USB device between many computing machines, guarantees that data communication is undistorted.

2, the utility model USB Strobe Controller has been avoided the frequent plug of USB device between many computing machines, uses and operates all very convenient.

3, USB Strobe Controller of the present utility model can guarantee can not taken by another computing machine when USB device is worked on being connected to a computing machine, has avoided the various computing machine that the use of USB device is disturbed.

4, can also set up the upstate pilot lamp on the USB Strobe Controller or/and the user mode pilot lamp, the USB gating interface that is respectively applied for the Control work group correspondence at its place of indication can be connected with the USB device interface or be in the state that is communicated with use this moment.

Description of drawings

Fig. 1 is the circuit structure schematic diagram of USB Strobe Controller among the embodiment.

Embodiment

Below in conjunction with drawings and Examples the technical solution of the utility model is described further.

Referring to Fig. 1.Present embodiment is that a gating way is 4 tunnel USB Strobe Controller, comprising power supply E, a USB device interface UI, 4 USB gating interfaces, be respectively the 1st USB gating interface UO1, the 2nd USB gating interface UO2, the 3rd USB gating interface UO3 and the 4th USB gating interface UO4, and corresponding to 4 Control work groups of 4 USB gating interfaces, each Control work group includes a master relay, a secondary controlled relay and a gating switch; 4 Control work groups constitute 4 road gating control unit circuit, and power supply E is in parallel with this 4 road gating control unit circuit, is used to provide operating voltage.The following describes the circuit structure that constitutes 4 road gating control unit circuit by 4 Control work groups.

With the 1st Control work group is example: the 1st Control work group includes master relay J11, secondary controlled relay J12 and gating switch K1; Master relay J11 controls the on/off of its normal-closed end J11A and normal beginning J11B by its coil control end J11C, secondary controlled relay J12 adopts the four-way relay (also can adopt the four-way relay group that is made of four relays) with 4 contact switchs, controls the on/off of four passages of its Chang Kaiduan J12B by its coil control end J12C; Four signal wires of the USB gating interface UO1 of the 1st Control work group correspondence are connected with four signal wires of USB device interface respectively by four passages of the Chang Kaiduan J12B of secondary controlled relay.The Chang Kaiduan J11B of master relay connects with the coil control end J12C of controlled relay and constitutes the 1 tunnel secondary control branch road; The coil control end J11C of gating switch K1, master relay connects with the normal-closed end (i.e. the normal-closed end J41A of the normal-closed end J31A of the normal-closed end J21A of the 2nd Control work group master relay, the 3rd Control work group master relay and the 4th Control work group master relay) of all the other 3 Control work group master relays and constitutes the 1 tunnel master control branch road; The 1 tunnel master control branch road and the 1 tunnel secondary control branch road are in parallel again, constitute the 1 road gating control unit circuit.As a kind of improvement, in the master control branch road of the 1 road gating control unit circuit, the coil control end J11C of master relay also has been arranged in parallel user mode pilot lamp L11.Further improve, in the master control branch road of the 1 road gating control unit circuit, also be provided with upstate pilot lamp L12, gating switch K1 selects single-pole double-throw switch (SPDT) for use, the end of upstate pilot lamp L12 links to each other with the end of master relay coil control end J11C, the other end of upstate pilot lamp L12 and master relay coil control end J11C is connected two choosings of gating switch K1 respectively and throws the contact, thereby the coil control end J11C of upstate pilot lamp L12 and master relay forms two optional branch roads of throwing, and selects K1 to throw the coil control end J11C conducting energising of upstate pilot lamp L12 or master relay by gating switch.

2nd, the structure of 3,4 road gating control unit circuit is identical with the 1 road gating control unit circuit.

During use, USB device is connected on the USB device interface UI, 4 USB gating interfaces are connected respectively to 4 different computing machines again.When each gating switch all selects when throwing its upstate pilot lamp place branch road, upstate pilot lamp in 4 road gating control unit circuit is energising and lights state, shows that 4 USB gating interfaces and USB device interface all are in the state that can be connected at this moment.At this moment, make its choosing throw the coil control end J11C place branch road of master relay if operate the 1st Control work group gating switch, in the 1st Control work group, upstate pilot lamp L12 extinguishes, after the coil control end J11C energising of master relay, the normal-closed end J11A that controls secondary controlled relay changes into off-state by conducting state, Chang Kaiduan J11B changes into conducting state by off-state, the 1 tunnel master control branch road is communicated with, the coil control end J12C energising of secondary controlled relay in the 1 tunnel secondary control branch road, the closed conducting of the Chang Kaiduan J12B of secondary controlled relay, and then making the 1st USB gating interface UO1 of its correspondence be communicated with four signal wires of USB device interface UI, USB device just is communicated on the computing machine that the 1st USB gating interface UO1 connected and works.Because the coil control end J11C of the 1st Control work group master relay energising, the user mode pilot lamp L11 in parallel with the coil control end J11C of master relay also switches on and lights, and represents that the 1st USB gating interface UO1 is at this moment with USB device interface UI to be communicated with user mode; Simultaneously, because the normal-closed end J11A of the 1st Control work group master relay disconnects, 2nd, the master control branch road of 3,4 road gating control unit circuit all can't be communicated with energising, therefore the upstate pilot lamp in the 2nd, 3,4 road gating control unit circuit also is and extinguishes state, show that the 2nd, 3,4 USB gating interface and USB device interface are in the state that can not be connected at this moment, guaranteed can not taken when USB device is worked on being connected to a computing machine, avoided the various computing machine that the use of USB device is disturbed by another computing machine.

The gating way of the utility model USB Strobe Controller is not limited to adopt 4 the tunnel, gating for any plural road (i.e. way more than 2 tunnel or 2 tunnel), as long as the USB gating interface and the gating control unit circuit of respective numbers are set, can adopt the utility model USB Strobe Controller to realize; Simultaneously, the utility model USB Strobe Controller circuit structure is simple, and any type of data-switching is not passed through in the gating connection of USB device between many computing machines, guarantees that data communication is undistorted, is fit to very much the office space and uses.

Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1.USB Strobe Controller is characterized in that, comprises power supply, USB device interface, a n USB gating interface and a n Control work group, each Control work group includes a master relay, a secondary controlled relay and a gating switch; N 〉=2;

2. USB Strobe Controller according to claim 1 is characterized in that, also comprises the user mode pilot lamp at least one Control work group; In comprising the Control work group of user mode pilot lamp, the user mode pilot lamp is in parallel with the coil control end of master relay.

3. USB Strobe Controller according to claim 1 and 2 is characterized in that, also comprises the upstate pilot lamp at least one Control work group; In comprising the Control work group of upstate pilot lamp, gating switch is a single-pole double-throw switch (SPDT), one end of upstate pilot lamp links to each other with an end of master relay coil control end, and the other end of upstate pilot lamp and master relay coil control end is connected two choosings of gating switch respectively and throws the contact.